Lehrbuch der vergleichenden Physiologie der Haus-Säugethiere - Royal College of Physicians of Edinburgh. (A. Hirschwald, 1865)

Lehrbuch für den ersten, systematischen Unterricht in der Naturgeschichte - Lumnitzer, Johann Georg. (In der Kunsthandlung des H.F. Müller, 1826)

Leitfaden für den Unterricht in der Botanik an Gymnasien und höheren Bürgerschulen : Zugleich als Anleitung zur leichteren Bestimmung der wildwachsenden Gefässpflanzen des mittleren und nördlichen Deutschlands - Wirtgen, Philipp Wilhelm, 1806 -1870 (T. Hölscher, 1852)

The Lepidoptera of the British Islands : a descriptive account of the families, genera, and species indigenous to Great Britain and Ireland, their preparatory states, habits, and localities - Barrett, Charles Golding, 1836 -1904 (L. Reeve, 1893)

The Lepidoptera of the British Islands : a descriptive account of the families, genera, and species indigenous to Great Britain and Ireland, their preparatory states, habits, and localities - Barrett, Charles Golding, 1836 -1904 (L. Reeve, 1904)

Die Lepidopteren der Schweiz - Frey, Heinrich, 1822 -1890 (W. Engelmann, 1880)

The lepidopterist's guide : for the use of the young collector - Knaggs, H. Guard (Henry Guard), 1832 -1908 (J. Van Voorst, 1871)

The lepidopterist's guide, for the use of the young collector of butterflies and moths - Knaggs, H. Guard (Henry Guard), 1832 -1908 (Gurney and Jackson, 1901)

The lepidopterist's guide : intended for the use of the young collector, containing full instructions for the collecting, management, observation, and preservation, of lepidoptera, in all their stages - Knaggs, H. Guard (Henry Guard), 1832 -1908 (J. Van Voorst, 1869)

Lessons in botany and vegetable physiology - Gray, Asa, 1810 -1888 (Ivison, Phinney, Blakeman, 1872)

Letters on the elements of botany : addressed to a lady - Rousseau, Jean-Jacques, 1712 -1778 (Printed for B. White and Son, 1791)

Letters on the elements of botany. Addressed to a lady - Rousseau, Jean-Jacques, 1712 -1778 (B. White, 1787)

Letters on the elements of botany, addressed to a lady - Rousseau, Jean-Jacques, 1712 -1778 (B. and J. White, 1796)

Lexicon generum phanerogamarum inde ab anno MDCCXXXVII : cum nomenclatura legitima internationali et systemate inter recentia medio - Post, Thomas Erik von, 1858 -1912 (Deutsche verlags-anstalt, 1904)

Lijst van nederlandsche, hoogduitsche, fransche en engelsche namen van planten - Heukels, Hendrik, 1854 -1936 (N.V. Boekhandel en Drukkerij, 1910)

Lilly's complete annual : seeds fertilizers spray materiels poultry supplies stock foods bee supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chas. H. Lilly Co, 1916)

Lilly's seeds plants poultry & bee supplies fertilizers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chas. H. Lilly Co, 1908)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1833)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1834)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1837)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1838)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1839)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1840)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1851)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1852)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1859)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1878)

Linnaea entomologica : Zeitschrift herausgegeben von dem Entomologischen Vereine in Stettin - Entomologischer Verein in Stettin. (Ernst Siegfried Mittler, 1849)

Linné och växtodlingen - Linné, Carl von, 1707 -1778 (Akademiska boktryckeriet, E. Berling, 1907)

List of foreign pests, pathogens and weeds detected on introduced plants - Leppik, E. E., 1906 -

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1935)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1940)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1948)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1931)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1969)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1978)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1950)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1956)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1968)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1955)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1962)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1952)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1949)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1966)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1954)

List of Pteridophyta and Spermatophyta growing without cultivation in northeastern North America - American Association for the Advancement of Science. (1893)

List of Pteridophyta and Spermatophyta growing without cultivation in northeastern North America - American Association for the Advancement of Science. Botanical Club. (1894)

List of rare, threatened and endemic plants in Europe (1982 edition) (1983)

List of seeds - Giardino Botanico Hanbury (Mortola, Italy) (G.A. Koenig, 1895)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1911)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1912)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1908)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1913)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1906)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1910)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1904)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1900)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1905)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1902)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1920)

List of seeds collected during ... - Royal Botanic Garden, Edinburgh. (Printed for Her Majesty's Stationery Office, 1930)

List of seeds for exchange - National Botanic Gardens (Ireland) (Royal Botanic Gardens, 1898)

List of seeds for exchange - National Botanic Gardens (Ireland) (Royal Botanic Gardens, 1900)

List of seeds for exchange - National Botanic Gardens (Ireland) (Royal Botanic Gardens, 1891)

List of seeds for exchange - National Botanic Gardens (Ireland) (Royal Botanic Gardens, 1901)

List of seeds for exchange - National Botanic Gardens (Ireland) (Royal Botanic Gardens, 1895)

List of the specimens of homopterous insects in the collection of the British Museum ... - Gray, John Edward, 1800 -1875 (Printed by Order of the Trustees, 1852)

List of the specimens of lepidopterous insects in the collection of the British Museum - Gray, John Edward, 1800 -1875 (Printed by order of the Trustees, 1854)

List of the specimens of lepidopterous insects in the collection of the British Museum - Gray, John Edward, 1800 -1875 (Printed by order of the Trustees, 1856)

Liste des graines distribuées à titre d'échange pour l'année ... - Jardin botanique de la faculté de la médecine et de pharmacie de Marseille. (Jardin botanique de la faculté de la médecine et de pharmacie de Marseille, 1938)

Liste des plantes de montagnes elevées au Jardin Alpin D'Acclimatation de Genève - Correvon Fils & Cie. (Jardin Alpin D'Acclimatation, 1915)

Liste des plantes de montagnes elevées au Jardin Alpin D'Acclimatation de Genève - Correvon Fils & Cie. (Jardin Alpin D'Acclimatation, 1919)

Liste des plantes de montagnes elevées au Jardin Alpin D'Acclimatation de Genève - Correvon Fils & Cie. (Jardin Alpin D'Acclimatation, 1920)

Liste des plantes de montagnes elevées au Jardin Alpin D'Acclimatation de Genève - Correvon Fils & Cie. (Jardin Alpin D'Acclimatation, 1914)

Liste des plantes de montagnes elevées au Jardin Alpin D'Acclimatation de Genève - Correvon Fils & Cie. (Jardin Alpin D'Acclimatation, 1921)

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Literaturberichte zur Flora, oder Allgemeinen botanischen Zeitung - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (K. Bayerische Botanische Gesellschaft, 1831)

Literaturberichte zur Flora, oder Allgemeinen botanischen Zeitung - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (K. Bayerische Botanische Gesellschaft, 1838)

[L.L. May & Co. materials] - L.L. May & Co. (1890)

The London catalogue of British plants : containing the British Phænogamia, Filices, Equisetaceæ, Lycopodiaceæ, Selaginellaceæ, Marsileaceæ, Salviniaceæ and Charophyta. Adapted for marking desiderata in exchanges of specimens; for an index catalogue to British herbaria; for indicating the species of local districts; and for a guide to collectors by showing the comparative rarity or frequency of the several species - Fraser, H. (George Bell & Sons, 1925)

London Naturalist - London Natural History Society. (London Natural History Society, 1930)

London Naturalist - London Natural History Society. (London Natural History Society, 1952)

London Naturalist - London Natural History Society. (London Natural History Society, 1957)

London Naturalist - London Natural History Society. (London Natural History Society, 1969)

London Naturalist - London Natural History Society. (London Natural History Society, 2006)

Lotos - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (Verlag des Deutschen Naturwissenschaftlich-Medizinischen Vereines für Böhmen "Lotos", 1908)

Lotos : Zeitschrift für Naturwissenschaften - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (1856)

Lotos : Zeitschrift für Naturwissenschaften - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (1858)

Lotos : Zeitschrift für Naturwissenschaften - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (1860)

Loudon's encyclopaedia of plants; comprising the specific character, description, culture, history, application in the arts, and every other desirable particular respecting all the plants indigenous to, cultivated in, or introduced into Britain - Loudon, J. C. (John Claudius), 1783 -1843 (Longmans, Green, 1866)

Loudon's hortus britannicus : a catalogue of all the plants indigenous, cultivated in, or introduced to Britain - Loudon, J. C. (John Claudius), 1783 -1843 (Longman(etc],), 1850)

Loudon's Hortus britannicus : a catalogue of all the plants indigenous, cultivated in, or introduced to Britain. Part I. The Linnaean arrangement : part II. The Jussieuean arrangement - Loudon, J. C. (John Claudius), 1783 -1843 (Printed for Longman, Rees, Orme, Brown, and Green & Longman, 1839)

Loudon's hortus britannicus : a catalogue of all the plants indigenous, cultivated in, or introduced to Britain - Loudon, J. C. (John Claudius), 1783 -1843 (Longman(etc],), 1839)

Loudon's Hortus britannicus.A catalogue of all the plants indigenous, cultivated in, or introduced to Britain. Part I. The Linnaean arrangement... Part II. The Jussieuean arrangement... - Loudon, J. C. (John Claudius), 1783 -1843 (Printed for Longman, Rees, Orme, Brown, and Green, 1890)

Loudon's Hortus britannicus.A catalogue of all the plants indigenous, cultivated in, or introduced to Britain. Part I. The Linnaean arrangement... Part II. The Jussieuean arrangement... - Loudon, J. C. (John Claudius), 1783 -1843 (Printed for Longman, Rees, Orme, Brown, and Green, 1830)

Lübeckische Flora - Häcker, Gottfried Renatus, 1789 -1864 (F. Aschenfeldt, 1844)

Lunds universitets års-skrift. Acta Universitatis Lundensis - Lunds universitet. (Universitetet, 1891)

Lunds universitets årsskrift 2. Afd Medicin samt matematiska och naturvetenskapliga ämmen - Lunds universitet. (Universitets], 1906)

Lunds universitets årsskrift 2. Afd Medicin samt matematiska och naturvetenskapliga ämmen - Lunds universitet. (Universitets], 1921)

The Macrolepidoptera of the world : a systematic account of all the known Macrolepidoptera - Seitz, Adalbert, 1860 -1938 (Fritz Lehmann Verlag, 1912)

The Macrolepidoptera of the world : a systematic account of all the known Macrolepidoptera - Seitz, Adalbert, 1860 -1938 (Fritz Lehmann Verlag, 1914)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1973)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1986)

Magazin des Pflanzenreichs - Reich, Gottfried Christian, 1769 -1848 (1793)

Magazin des Thierreichs - Leitner, Johann, (Wolfgang Walther, 1794)